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A spherical turning lathe (also known as a ball turning lathe or external/internal spherical surface lathe) is specially designed for machining spherical outer and inner surfaces with high precision. Developed to meet growing market demands,It is particularly well-suited for manufacturing critical components such as ball valves, where it handles rough turning, precision finishing, and full contour machining of spherical profiles.
With the addition of a grinding attachment and a specialized surface finish attachment, this machine can achieve exceptional surface quality up to Ra 0.2, meeting strict tolerances for industries like valves, pumps, bearings, and hydraulic components.
Beyond spherical machining, it also functions as a versatile conventional lathe, supporting facing, chamfering, grooving, drilling, boring, and trepanning operations on a wide variety of workpieces.
| Items | Unit |
|---|---|
| Capacity | |
| Swing over bed | mm |
| Max. diameter of sphere | mm |
| Min. diameter of sphere | mm |
| Max. length of workpiece | mm |
| Span of guideway | mm |
| Max. weight of workpiece | ton |
| Spindle | |
| Spindle nose type | - |
| Spindle bore | mm |
| Front taper of spindle hole | mm |
| No. of spindle speeds | - |
| Range of spindle speeds |
r min |
| Spindle reverse speeds |
r min |
| Chuck size | mm |
| Toolpost | |
| Cross section of tool shank | mm |
| Swivel angle of toolpost | ° |
| Toolpost type | - |
| Tailstock | |
| Tailstock quill diameter | mm |
| Tailstock quill taper | - |
| Tailstock quill effective stroke | mm |
| Others | |
| Main motor power | kW |
| Length | mm |
| Width | mm |
| Height | mm |
| Net weight | kg |
| C6525 | C6555 | C6590A | C6590B | C65160 | C65180 |
|---|---|---|---|---|---|
| 560 | 940 | 1430 | 1600 | 2000 | 2200 |
| 250 | 550 | 900 | 900 | 1600 | 1800 |
| 50 | 50 | 150 | 260 | 1000 | 1200 |
| 1000 | 1500 | 1500 | 1500 | 3000 | 3000 |
| 400 | 550 | 600 | 755 | 1100 | 1100 |
| 0.3 | 1.5 | 2 | 6 | 16 | 16 |
| C6 | C11 | C11 | A2-15 | A2-15 | A2-15 |
| 52 | 100 | 104 | 130 | 100 | 100 |
| MT6 | Metric120 | Metric120 | Metric140 | Metric140 | Metric140 |
| 24 | 18 | 18 | 21 | 21 | 21 |
| 10-1400 | 6-800 | 5.4-720 | 3.15-315 | 3.15-315 | 3.15-315 |
| 14-1580 | 11-838 | 6.5-720 | 3.5-291 | 3.5-291 | 3.5-291 |
| 250 | 320 | 320 | 400 | 1250 | 1250 |
| 25×25 | 30×30 | 32×32 | 45×45 | 50×50 | 50×50 |
| ±90 | ±90 | ±90 | ±90 | ±55 | ±55 |
| V4 | V4 | V4 | V4 | V4 | V4 |
| 75 | 100 | 100 | 160 | 260 | 260 |
| MT5 | MT5 | MT5 | MT6 | Metric 80 | Metric 80 |
| 150 | 250 | 250 | 300 | 300 | 300 |
| 7.5 | 11 | 11 | 22 | 30 | 30 |
| 2668 | 3725 | 3360 | 4700 | 6120 | 6220 |
| 1000 | 1430 | 1450 | 2500 | 2620 | 2720 |
| 1367 | 1690 | 1950 | 2000 | 2520 | 2620 |
| 2300 | 4400 | 5500 | 12000 | 20800 | 21300 |
A spherical turning lathe is used for machining spherical surfaces and special curved turning applications according to workpiece geometry.
Please provide sphere diameter, workpiece material, clamping method, machining allowance, accuracy requirement, and production quantity.
Yes. The machine and tooling can be discussed according to the spherical surface size, workpiece structure, and machining process.
